#include <stdio.h>

#define PI_DIFINE 3.1415926
const double PI_CONST = 3.1415926;

int main(int argc, char *argv[])
{
    printf("PI_DIFINE = %.2f\n", PI_DIFINE);
    printf("PI_CONST = %.2f\n", PI_CONST);

    double pi_difine = PI_DIFINE;
    double pi_const = PI_CONST;
    double pi_const_1 = PI_CONST;

    printf("PI_CONST: %p\n", &PI_CONST);
    printf("pi_difine: %p\n", &pi_difine);
    printf("pi_const: %p\n", &pi_const);
    printf("pi_const_1: %p\n", &pi_const_1);

    return 0;
}
